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Lake Ashi

Lake Ashi 1
Travel Info
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Travel Info

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Lake Ashi Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Lake Ashi year round climate

  • Spring (March–May): Average 11.8–18.9°C, mild and rainy, gradually warming from March, but with more rainfall. Common activities: Lakeside walks, Hakone Ropeway sightseeing. Recommended clothing: Light jacket, comfortable long pants, rain gear.
  • Summer (June–August): Average 22.8–27.9°C, hot and humid, with relatively high rainfall, particularly in June. Common activities: Boat trips, hot spring bathing, hiking. Recommended clothing: Breathable clothing, short sleeves, hat, rain gear.
  • Autumn (September–November): Average 19.0–26.1°C, comfortable and pleasant, with gradually decreasing rainfall. Common activities: Autumn leaves viewing, lakeside strolls, museum visits. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 6.2–8.4°C, relatively low temperatures, less rainfall. Common activities: Hot spring bathing, appreciating the lake scenery. Recommended clothing: Warm jacket, scarf, hat, gloves.

Lake Ashi climatological average

Annual average temperature: approx. 17°C / Annual rainfall: approx. 2182 mm / Summer humidity: 70%–80% / Rainiest month: June

Lake Ashi monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
6.2°C
43.1
February
7.5°C
109.2
March
11.8°C
191.3
April
16.2°C
234
May
18.9°C
262.2
June
22.8°C
346.2
July
27.9°C
198.4
August
27.9°C
227.1
September
26.1°C
242.3
October
19°C
152.5
November
14.7°C
137.1
December
8.4°C
38.8

Lake Ashi weather for the next seven days

5/7
Thursday
Patchy rain nearby
22.7°C/13°C
5/8
Friday
Partly Cloudy
21.8°C/14.9°C
5/9
Saturday
Sunny
19.8°C/10.6°C
5/10
Sunday
Sunny
19.2°C/9.2°C
5/11
Monday
Sunny
21.3°C/10.1°C
5/12
Tuesday
Partly Cloudy
20.3°C/12°C
5/13
Wednesday
Sunny
20.9°C/10.5°C

Lake Ashi Frequently Asked Questions and Useful Information for Travel

Why is Lake Ashi famous?

Lake Ashi is renowned for its breathtaking views of Mount Fuji framed by the iconic red torii gate of Hakone-jinja Shrine situated on its shore. It offers a serene natural escape easily accessible from Tokyo, perfect for enjoying the outdoors and discovering local hot springs.

Why can't you swim in Lake Ashi?

Swimming is prohibited in Lake Ashi to ensure visitor safety due to its considerable depth and often frigid water temperatures, which pose significant risks. This ban also helps preserve the water quality, vital for local fishing and boating activities, and prevents interference with the busy excursion boat traffic and other watersports.

Where is the best view of Mount Fuji from Lake Ashi?

The most iconic view of Mount Fuji from Lake Ashi is often found near Hakone Shrine. The torii gate standing in the water provides a postcard-perfect backdrop with Mount Fuji visible on clear days. To reach this spot, you can take the Hakone Tozan Bus from Hakone-Yumoto Station to Moto-Hakone.

Is Lake Ashi near Mount Fuji?

Yes, Lake Ashi is celebrated for offering spectacular views of Mount Fuji. The lake is nestled in a region known for its numerous hot springs, historical landmarks, and traditional ryokan inns, making it a key destination along the historic Tōkaidō road that once connected Kyoto and Tokyo.

What are the main attractions around Lake Ashi?

Besides the famous views of Mount Fuji and the Hakone Shrine, the area around Lake Ashi boasts the Hakone Open-Air Museum, offering a unique blend of art and nature, and the Hakone Ropeway, which provides stunning panoramic views of the volcanic Owakudani valley. You can also enjoy boat cruises across the lake for a different perspective.